大连理工大学学报2017，Vol.57Issue(6)：615-621,7.DOI:10.7511/dllgxb201706010
基于CFD的小尺度桩柱流固耦合分析及波浪力求解
FSI analysis of small scale pile and solution of wave force using CFD method
摘要
Abstract
Three dimension numerical wave tank is established on Workbench platform for analysis of cylinder pile in soft soil foundation under wave actions.Simulation of linear wave and two-way fluid-structure interaction(FSI)analysis are realized,and numerical results of wave force on cylinder are obtained.For small scale pile,the wave forces obtained using CFD method are consistent with the results using standard method given in Code of Hydrology for Harbor and Waterway when the pile is treated as rigid,but when the pile is treated as flexible and considering the coupling action between the pile and water,the peaks of wave force increase or decrease indefinitely,the maximum total wave force increases by 5.7% and the bending moment at pile bottom increases by 54%.The pile vibrations when neglecting the fluid coupling are greater than that considering the coupling,and the bending moment at pile bottom using direct loading method which doesn't consider the fluid coupling increases by 84.6% than that using standard method.Therefore,FSI method should be applied in design of small scale flexible piles.关键词
CFD/数值波浪水池/流固耦合/波浪力/小尺度桩柱Key words
CFD/numerical wave tank/fluid-structure interaction (FSI)/wave force/small scale pile分类
能源科技引用本文复制引用
张力伟,李昕,赵颖华..基于CFD的小尺度桩柱流固耦合分析及波浪力求解[J].大连理工大学学报,2017,57(6):615-621,7.基金项目
国家自然科学基金创新研究群体项目(51421064). （51421064）
